Duplicating-machine.



H. C. HARRIS.

DUPLIGATING MACHINE.

APPLICATION FILED JUNE 12,1908.

921,244. Patented May11,1909.

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H. C. HARRIS.

DUPLIGATING MACHINE.

A1PLIOATIOI( FILED JUNE 12,1908.

92 1 ,244. Patented' May 11, 1909.

3 SHEETS-SHEET 2.

gravada Patented May 11, 1909.

3 SHEETS-SHEET 3.

C. HARRIS.

DUPLIUATING MACHINE.

APPLIOATIO FILED JUNE 12,1908.

UN ITED STATES PATENT OFFICE.

HENRY c. HARRIS, or COLUMBUS, omo.

DUPLICATING-MACHINE.

T 0 all 'whmi it may concern:

Be it known that I, HENRY (j. l-IARnis, a

citizen of the United States, residing atl Columbus, in the county ol' Franklin and State of Ohio, have invented certain new and use'l'ul Improvements in vDuplicating ,Machines, of which the following is a specification.

My invention relates to the improvement of i duplicating machines of that class which are employed for the purpose of making duplicate copies of typewritten letters by the aid of a perforated cylinder and stencil sheet thereon, and has articular relation to that class of duplicating machines known as minieographs.

The objects of my invention are to provide a duplicating machine of the class set forth with improved means for rapidly printing reproductions of circulars, letters etc., on a continuous strip of paper fed :from a paper roll; to provide im roved means for automatically cuttin t 'e paper strip into sections after the printing operation; to provide improved means for stopping` the traveling movement of the paper strip during the cutting action and to produce other improvements the details of construction and arrangement of parts of4 which will be more fully pointed out herein after.

These objects I accomplish in the ina-imeiillustrated in the accompanying drawings, in which: A

Figure 1 is a side elevation oi' my improved duplicating machine, Fig. 2 is a front end view thereof, Fig. 3 is adetail view in perspective oi' the delivery plate and adjacent parts, Fig. 4 is a plan view of the machine, 10. 5 is a sectional View on line y-y of Fig.

1, 1`ig. 6 is a side elevation of that portion of i the machine which cariies the printing c'lindex' showing a portion of the outer in ei supportingfraine broken away an upon the rear portion of 'which is mounted the mimeograph supporting frame, which com )rises opposin side fraine wlnc i are journalci the end spin les 3 0i' the usual form 'of miineograph cylinder 4, the;

ends 4a of which have the forms of spoked Specification of Letters Patent.

Application led .Tune 12,

other ad jacent parts removed for the sake of eleariicces 2 in Patented May l1, 1909.

1908. Serial No. 438,013.

f wheels. Between these wheel members is carried a segment of a cylinder which is indi cated in Fig. 7 at 5, said segment being provided with the usual ink outlets or perforations. 0n one of the stub shafts or end spindles 3 of the cylinder is carried a gear wheel 6 which meshes with the teeth pf a pinion -7 which is carried on a short horizontal shaft 8 .mounted in a sleeve or boxing E) which is supported from the adjacent side frame 2. On the outer end of the shaft 8 is carried a comparatively large grooved belt oi' pulley Wheel 1U, over which an endless belt or cord 11 runs to the belt wheelof a suitable electric motor 12 which is preferably located in rear of the frame base 1 upon a rearward extension 1EL of the latter.

At a suitable distance in rear of the base frame 1, I support a vertical standard 13 in which is journaled a sleeve or tubular body 14 (see Fig. 5) the latter being adapted to be fixed in its position by set screws 15. Journaled in the sleeve or bearing' bodv 14 is the. outer portion of a horizontal rod 16. the end portions of which are threaded, as shown. Each end of the bearing body 14 is formed with a shallow ball-race 17 and upon the outer portion of the shaft 16 is screwed a bearingr ring 1S, the latter being made to abut against the outer end of the bearing body 14 and provided with a ballrace' in its abutting face uithin which and the race 17 are contained bearing' balls 1), the latter being in contact with the shaft 16. Bearing balls 2() are likewise contained in the Q race-way 17 at the inner end of the bearing body 14 and in a corresponding race-way of a bearing ring 21 which is mounted on the shaft 16. 22 which is mounted centrally on the shaft i 16 and which in turn bears against the outer face of a taperingr reci or paper roll plug 23. 'lhc shaft 16 in its outer end portion also passes through a second tapering reel plug!` 24 against the outer face of which bears a plate or disk 25 against which bears a washer .26 which is held in place by a nut 27 carried on i the threaded outcrcnd of thr` shaft 16. Upon the tapering reel plugs 24 is mounted in the usual manner a paper roll 2S.

l `.xtcnding reariiardly from and pivoted het een the lower portions of the side frame nicnibcrs 2 is a rearwardly extendin0I platform 2S) above the outer cnd portion o which is suitably journaled a guide roller 30. 31 represents a yoke-shaped wire frame ii fi Aflixed to a transverse ro which has the ends of its side arms fixed in connection with the rear end and outer portions of the platform 29, said yoke-shaped frame having journaled in its outer or rear end portion a roller 32, the latter bearing upon the upper side of the (paper roll body 28. 33 which bridges the platform or board 29 are forwardly and downwardly inclined guide fin ers 34, the uipturned lower portions of whic bear upon t .e paper stri 28 which leads from the roll 28 on to he platform 29 beneath the roller 30. From the forward end of the platform 29, the paper strip leads'over a ransverseA late 35 thence between the underside o the rinting cylinder 5 and a transverse pivote roll 36. From this roll. the paper stri leads forwardly over a fixed horizontal de ivery plate 37 which is supported below and in front of the printin cylinder from the framework 1 am whic has projecting from its upper sidenear eac-h of its longer edges, a vertical guide flange 38.

Supported transversely upon the framework l at the forward end thereof and below a forward lip extension 37L of the delivery plate 37 is a horizontal plate or bar 39 and rising from op osite ends thereof are the upturned memers 40 of angular brackets 40. These brackets have their ba se or horizontal members adjustably mounted on the plates 39 by havin formed therein slotted openings 41 throng whicb`screws 42 ass into said plate 39. In one of the brac ets 40 is fixev y y clined shearing blade 43 having its sharpened edge uppermost and its point engaging an opening 1n the member 40 of the remaining bracket 40.

44 represents a second cutting or shearing blade which in its-outer orrear portion is pivoted tothe inner side ofthe outer end portion of the blade 43. Fixed to the rear side of the blade 44 nearits outer end is an .extension 45 of an angle bar 45 'which angle bar extends at an angle with the blade 44 and on the inner or rear side of the fixed blade 43 (see Figs. 4, 1 and 7). The purpose of this angle bar 45 is to form a paper guide which is carried by the blade 44.

Extending transversely above the delivery plate 37 an ivoted in the side flanges 38 1s a rod 46 w ich is provided with downwardly projecting paper guide fingers 47. Immediatelyin rear of the rod 46 is pro- .vided a transverse -bar 48 said liar having upwardly and outwardly bent hook termi,- nations 48* which bear upon the upper sides of the fianes' 38 and w ich are prevented from an un sirable degree of upward movement by angular sto horizontal portions o which extend over the hook terminations of said bar. The bar 48 is adapted to be made to bear upon the paper strip 28` which extends over the' dehk lugs 49, the upper the shank of an outwardlv in' which is pivoted at 54 to a. forward and up# ward extension of one ofthe frame members 2, the rear portion of said bar extending on the inner side of said frame member 2. with its upper side in the ath of a roller 55 which is pivoted on the a jacent cylinder end at cts from the one side of the end spindle of the latter.

The arm 53 which extends forwardly and laterally from its pivot point has its outer end connected through the medium of'a rod 56 with the outer end or shank 44 of the shear or cutting blade 44. With the outer end portion 44a'of the cutting blade is connected one end of a spring 57, the remaining end of which is connected at a lower point with the frame 1," said s rin tending to normally hold said cuttingllalare elevated position shown in Fi 2 of the drawing. The outer' portion or s ank ofthe cutting blade is limited, however, in its downward movement by contact with a suitable bumper 58 which is mounted in the outer portion of an arm 59 which projects from the frame 1. V

60 represents a spring, one 'end of which is connected with the bar 53 and the remaining end of which is connected with the outer end of the lever 50.

In front of and below the forward end of the machine body, I provide a suitable paper receiving tray 61. l

In order to insure a paper strip between t e roller 36 and the 4printing cylinder, I provide on each side of the `plate 35 angular guide brackets 62 the horizontal ortions of the latter bein slotted to receive screws 63 which are a apted to 'enter the framework of the machine. The upturned inner members of the guide brackets 62 are designed to limit the lateral movement of the paper stri and said brackets being adjustable, it is o vious that they ma be made to accommodate strips of diflerent widths.

In operation, it will be understood that rotary motion is imparted to the wheel 10 from the motor 12 and throu h the shaft 8 and gear wheels 7 and 6 to t e` cylinder 4. In producing printed reproductions from mac 'nes of tlns class, I follow the usual custom of covering the perforated cylinder segment 5 with a pad of cloth or suitable in absorbing material such as is indicated at 5*, said pad being covered by a stencil in the inclined.

proper guiding of the sheet b in which the words to be printed, have beenV stenciled in the usual manner. The ink as usual isapplied to the inner surface of the-cylinder segment and finds its vfay through4 the perforations of the latter, thence through the pad 5 and the stencil openingnof the sheet 5b. This construction is well own, however, and does not form a art of my invention.

he binding ofthe a er strip between the cylinder segment an t e roll 36, results ins an intermittent forward. feeding movement of the paper strip, during which movements of the paper, printed impressions are made thereon from the stencil sheet in the usual manner. From the roller 36, the paper stri asses outward over the delivery late an t ence over the an le bar 45 and ed cutter blade 43. It wil be understood that once during each rotation of the cylinder; the roller 55 will come into contact with the upper side of the rear portion of the bar 53, resulting in depressing the rear portion of said bar andraising the forward ortion thereof, this raising action resulting t rough the springlconnection 60 in an upward movement of t e outer portion of the lever 5() and a downward 'movement of its inner portion, which in turn causes the bar 48 to drop downward on to the paper stri a'nd hold the latter in contact with saidelivery plate. As this is accomplished, the upward pull on the connecting rod 56, which necessarily follows the upward movement of the bar 53, results in a downward swinging movement of the blade 44 which shearing against the fixed blade 43, causes the pa er to be severed, permitting the severe( s ieet or section to drop into the receptacle 61. As the roller 55 passes out of contact with the bar 53, it is obvious that through the action of the spring 57 the outer end o the bar S3-will be again pulled downward and through pressure thereof on the arm 52, the bar 48 will be raised out of contact with theV paper strip. As this is accomplished, the contact of the cylinder segment and paper strip is again effected, with the result that the aper strip is fed forward the length of anotlier section thereof, at' which time the operation of severing said section from the strip and holding the strip against movement, is repeated. As the paper is wound from the roll 28 and the l circumference ofsaid roll reduced, it is obvious that the roller 32 together with the wire frame 31 and platform 29 will be lowered accordingly and it will also be under# stood that during the movement of the paper from the rollto the cutting blades, the paper strip will be held against buckling and 1n roper contact with the supports over which it travels by the roller 30, the fingers 34 and fingers 47. In order to prevent the paper strip from becoming de ressed be- 85 tween the outer edge of the de ivery plate i and its point of severance, I have provided the angle bar 45 which being connected with the blade 44, descends below the fixed blade 43 when the blade 44 moves downward, but which when said latter blade is elevated, forms a bridge or support for the paper strip. i

In case a pa er roll of less or reater width is desired or use, it is evident t at the space between the reel end plates 22 and 25 may be decreased or increasedby turning the outer nut or bearing member 18 inward or outward on the threaded portion of the rod 16. It will also be understood that the length or size of the paper section cut fromthe strip at the forward end of the machine, may be varied by moving the brackets 40 outward or inward, thereby Vchanging the position of the fixed blade 43.

I am aware that mechanism for producing a plurality of printed reproductions has been 4ein loyed in which a printing cylinder such as erein described, is embodied, but the operation of. such machines has usually con sisted in feeding reviously cut paper sections or sheets un er the printing cylinder.

By the o ieration und construction which I have descri ed, it will readily be understood that simple and ini roved means are provided for automatically feeding a paper strip beneath the printing cylinder, successively producing rinted impressions thereon and cutting sai(v paper strip into sections.

What I claim, is:

l l. In a machine of the characterdescribed, the combination with a rotatably mounted printing cylinder, c feed roller and a delivery plate, of a paper cutting mechanism in front of said delivery plate comprising a fixed cutting blade and a pivoted cutting blade, a bar connected with and extending at an angle from said ivotcd cutting blade and adapted when the Ilatter is elevated to fill the s mee between the end ofthe delivery plate mi the `fixed blade, said bar serving as a sup )ort for the paper in its )tissage from the delivery late to the fixedl cutting blade` and means or o erating said pivoted blade from the cylinf er.

2, In a machine of the character described, the combination with a rotatably mounted printing cylinder, a feed roller adjacent there to and a delivery plate extending in front of said cylinder, of a paper cutting mechanism in front of the delivery plate com rising a fixed cutting blade and a pivote ciitting binde, a bar extending across said deliveryr plate, means for operating said pivoted blade, and means operated from the cylinder for raising said bar during the printing operation and lowering the same during the cutting operation.

3. In a machine of the character described, the combination with a rotatably mounted printing cylinder comprising a perforated lOO evlinder segment and u. projection on one end of smid cylinder, n feed roller journaled udjucent to seid cylinder, and e delivery plate extending in front of the cylinder, of a uper severing mechanism in front of the de ivery plate comprising n` lixed cutting blade und n pivoted cutting blade, a pivoted bnr lnwing l vice and positive means also actuated rom one end extending in the path of seid eylinder end projection und its remaining end conneeted with the movable cutting blade, nnd n i paper srip rari-ying reel l\onrnnled in rear ol i lquid printing' cylinder.

ln n nnn'lnine of the character described i :lie combination with n rotatably mounted l printing cylinder u portion of which is cut away, of n leed roller lynig adjacent sind uylinder, :1 delivery plaire, :1 palper cutting meebnnism in front of seid delivery plate comprising n fixed cutting blnde and a pivoted cutting blade, a ClampingV device adapted to clamp the paper to the delivery plate while it is being out, yielding means actuated from the cylinder for opera `ling said Clanlpin deu the cylinder for actuating snid cutting blade. `ln testimony whereof l ellix my signature in presente ol two witnesses.

HENRY C. llAl{R.l S.

`\\` i tinesses z L. (Kun, SToUoirroN, A. l). lnnus. 

